Press-fit assembly apparatus

Abstract

A press-fit assembly apparatus for pressing to join two frames includes a base, a moving mechanism, and a rolling-and-pressing device. The base is used for supporting the two frame stacked thereon. The moving mechanism includes a movable mount. The rolling-and-pressing device includes a fixed mount and a roller. The fixed mount is fixed on the movable mount. The roller is connected to the fixed mount. During a movement of the movable mount in a direction relative to the base, the roller can keep moving apart from the base substantially by a distance. Thereby the roller can touch one of the frames corresponding to two engagement portions of the two frames and roll and press the one frame for achieve the purpose of joining the two frames. Therefore, the invention improves the yield of the joining process for the two frames by the above rolling and pressing.

What is claimed is: 
     
       1. A press-fit assembly apparatus for pressing to join a first frame and a second frame, the first frame comprising a first engagement portion, the second frame comprising a second engagement portion, the first engagement portion corresponding to the second engagement portion, the press-fit assembly apparatus comprising:
 a base for carrying the first frame and the second frame, wherein the second frame is stacked on the first frame, and the second engagement portion is right opposite to the first engagement portion; 
 a moving mechanism comprising a first movable mount, the first movable mount being capable of moving relative to the base in a first direction; and 
 a first rolling-and-pressing device comprising a first fixed mount and a first roller, the first fixed mount being fixed on the first movable mount, the first roller being connected to the first fixed mount, the first roller being able to keep moving apart from the base substantially by a distance during a movement of the first movable mount in the first direction, wherein when the first roller touches the second frame corresponding to the second engagement portion, the moving mechanism is capable of being driven to move the first movable mount in the first direction, so that the first roller rolls the second frame corresponding to the second engagement portion in the first direction so as to engage the second engagement portion with the first engagement portion. 
 
     
     
       2. The press-fit assembly apparatus of  claim 1 , wherein the moving mechanism comprises a supporting frame assembly, a slidable mount, a slidable mount driving device, and a first movable mount driving device, the supporting frame assembly is fixed on the base, the slidable mount is slidably disposed on the supporting frame assembly, the first movable mount driving device is disposed on the slidable mount for driving the first movable mount to move in the first direction, and the slidable mount driving device is disposed on the supporting frame assembly and connected to the slidable mount for driving the slidable mount to move close to or away from the base in a second direction, so that the first roller is capable of touching the second frame. 
     
     
       3. The press-fit assembly apparatus of  claim 2 , wherein the supporting frame assembly comprises a plurality of guiding columns passing through the slidable mount, the slidable mount driving device comprises a pneumatic cylinder fixed on the supporting frame assembly, the pneumatic cylinder comprises a piston rod connected to the slidable mount, and the pneumatic cylinder drives the slidable mount by the piston rod to slide on the guiding columns in the second direction. 
     
     
       4. The press-fit assembly apparatus of  claim 3 , wherein the first movable mount driving device comprises a first slide cylinder fixed on the slidable mount, the first slide cylinder comprises the first movable mount, and the first slide cylinder drives the first fixed mount by the first movable mount to move relative to the slidable mount in the first direction. 
     
     
       5. The press-fit assembly apparatus of  claim 4 , wherein the first movable mount driving device comprises two limit blocks adjustably disposed on the slidable mount, and the first movable mount is confined to be capable of moving between the two limit blocks. 
     
     
       6. The press-fit assembly apparatus of  claim 5 , the first frame comprising a third engagement portion, the second frame comprising a fourth engagement portion, the third engagement portion being right opposite to the fourth engagement portion, the press-fit assembly apparatus further comprising a second rolling-and-pressing device, the second rolling-and-pressing device comprising a second fixed mount and a second roller, the second roller being connected to the second fixed mount, the moving mechanism further comprising a second movable mount driving device, the second movable mount driving device comprising a second slide cylinder fixed on the slidable mount, the second slide cylinder comprising a second movable mount, the second fixed mount is fixed on the second movable mount, the second slide cylinder driving the second fixed mount by the second movable mount to move relative to the slidable mount in a third direction with the second roller keeping moving apart from the base substantially by a distance, the slidable mount driving device being capable of driving the slidable mount to move close to the base in the second direction, such that the first roller and the second roller are capable of touching the second frame at the same time, wherein when the second roller touches the second frame corresponding to the fourth engagement portion, the second rolling-and-pressing device is capable of being driven by the moving mechanism so that the second roller rolls the second frame corresponding to the fourth engagement portion in the third direction so as to engage the fourth engagement portion with the third engagement portion. 
     
     
       7. The press-fit assembly apparatus of  claim 6 , the first frame comprising a fifth engagement portion, the second frame comprising a sixth engagement portion, the fifth engagement portion being right opposite to the sixth engagement portion, the press-fit assembly apparatus further comprising a vertical pressing device, the vertical pressing device comprising a connection part, a pressing part, and an elastic adapting mechanism, the connection part being fixed on the slidable mount, the pressing part being connected by the elastic adapting mechanism to the connection part so as to be capable of elastically moving relative to the connection part, the slidable mount driving device being capable of driving the slidable mount to move close to the base in the second direction, so that the pressing part is capable of pressing the second frame to engage the sixth engagement portion with the fifth engagement portion. 
     
     
       8. The press-fit assembly apparatus of  claim 2 , wherein the first movable mount driving device comprises a first slide cylinder fixed on the slidable mount, the first slide cylinder comprises the first movable mount, and the first slide cylinder drives the first fixed mount by the first movable mount to move relative to the slidable mount in the first direction. 
     
     
       9. The press-fit assembly apparatus of  claim 8 , wherein the first movable mount driving device comprises two limit blocks adjustably disposed on the slidable mount, and the first movable mount is confined to move between the two limit blocks. 
     
     
       10. The press-fit assembly apparatus of  claim 9 , the first frame comprising a third engagement portion, the second frame comprising a fourth engagement portion, the third engagement portion being right opposite to the fourth engagement portion, the press-fit assembly apparatus further comprising a second rolling-and-pressing device, the second rolling-and-pressing device comprising a second fixed mount and a second roller, the second roller being connected to the second fixed mount, the moving mechanism further comprising a second movable mount driving device, the second movable mount driving device comprising a second slide cylinder fixed on the slidable mount, the second slide cylinder comprising a second movable mount, the second fixed mount is fixed on the second movable mount, the second slide cylinder driving the second fixed mount by the second movable mount to move relative to the slidable mount in a third direction with the second roller keeping moving apart from the base substantially by a distance, the slidable mount driving device being capable of driving the slidable mount to move close to the base in the second direction, such that the first roller and the second roller are capable of touching the second frame at the same time, wherein when the second roller touches the second frame corresponding to the fourth engagement portion, the second rolling-and-pressing device is capable of being driven by the moving mechanism so that the second roller rolls the second frame corresponding to the fourth engagement portion in the third direction so as to engage the fourth engagement portion with the third engagement portion. 
     
     
       11. The press-fit assembly apparatus of  claim 2 , the first frame comprising a fifth engagement portion, the second frame comprising a sixth engagement portion, the fifth engagement portion being right opposite to the sixth engagement portion, the press-fit assembly apparatus further comprising a vertical pressing device, the vertical pressing device comprising a connection part, a pressing part, and an elastic adapting mechanism, the connection part being fixed on the slidable mount, the pressing part being connected by the elastic adapting mechanism to the connection part so as to be capable of elastically moving relative to the connection part, the slidable mount driving device being capable of driving the slidable mount to move close to the base in the second direction, so that the pressing part is capable of pressing the second frame to engage the sixth engagement portion with the fifth engagement portion. 
     
     
       12. The press-fit assembly apparatus of  claim 1 , wherein the first rolling-and-pressing device comprises an elastic adapting mechanism and a roller support, the first roller is pivotally connected to the roller support, and the roller support is connected by the elastic adapting mechanism to the first fixed mount, so that the first roller is capable of elastically touching and rolling the second frame. 
     
     
       13. The press-fit assembly apparatus of  claim 12 , wherein the elastic adapting mechanism comprises an upper connection board, a lower connection board, a plurality of guiding columns, and a plurality of resilient parts, the upper connection board is fixed on the first fixed mount, the lower connection board is fixed on the roller support, the guiding columns connect the upper connection board and the lower connection board, and the resilient parts are disposed between the upper connection board and the lower connection board, so that the upper connection board and the lower connection board are capable of approaching each other by the guiding columns to compress the resilient parts. 
     
     
       14. The press-fit assembly apparatus of  claim 13 , wherein the first roller has a circumferential surface and a radial sidewall surface, and when the first roller rolls the second frame, the circumferential surface rolling touches the second frame, and the radial sidewall surface urges against a side surface of the second frame. 
     
     
       15. The press-fit assembly apparatus of  claim 14 , wherein the first roller has a curve or L-shaped sectional profile matching a surface profile of the second frame corresponding to the second engagement portion. 
     
     
       16. The press-fit assembly apparatus of  claim 15 , wherein the base comprises a platform and a fixture, the platform has a first positioning structure, the fixture a second positioning structure, the first positioning structure matches the second positioning structure, the fixture is detachably disposed on the platform by matching the first positioning structure with the second positioning structure, the fixture has an accommodating structure, the accommodating structure matches a profile of the first frame, and the fixture carries the first frame by the accommodating structure. 
     
     
       17. The press-fit assembly apparatus of  claim 1 , wherein the first roller has a circumferential surface and a radial sidewall surface, and when the first roller rolls the second frame, the circumferential surface rolling touches the second frame, and the radial sidewall surface urges against a side surface of the second frame. 
     
     
       18. The press-fit assembly apparatus of  claim 17 , wherein the first roller has a curve or L-shaped sectional profile matching a surface profile of the second frame corresponding to the second engagement portion. 
     
     
       19. The press-fit assembly apparatus of  claim 1 , wherein the first roller has a curve or L-shaped sectional profile matching a surface profile of the second frame corresponding to the second engagement portion. 
     
     
       20. The press-fit assembly apparatus of  claim 1 , wherein the base comprises a platform and a fixture, the platform has a first positioning structure, the fixture a second positioning structure, the first positioning structure matches the second positioning structure, the fixture is detachably disposed on the platform by matching the first positioning structure with the second positioning structure, the fixture has an accommodating structure, the accommodating structure matches a profile of the first frame, and the fixture carries the first frame by the accommodating structure.